What delayed soreness feels like
If you start a new exercise, increase the load, or return after time away, your muscles may feel tender, stiff and a little weak a day or so later. This is often called delayed onset muscle soreness, or DOMS. It typically begins several hours to a day after the activity, tends to peak somewhere around one to three days afterward, and usually fades within several days.
The feeling is typically a dull, achy tenderness spread across the muscle, worse when you press on it, stretch it or use it. Stairs are a classic reminder after a leg session.
Why it happens
The exact mechanisms are still debated. A common explanation is that unfamiliar or demanding effort, especially movements where the muscle lengthens under load such as lowering a weight or walking downhill, causes tiny disruptions in muscle fibers and surrounding tissue, along with an inflammatory response as the body adapts. Soreness is not a measure of how good a workout was. You can train effectively with little soreness, and you can be very sore after a poorly planned session.
Soreness usually lessens as your body gets used to a routine, which is one reason beginners feel it more strongly. It is also one reason to build up gradually. Easing back in after a long break is a good way to keep it manageable.
Gentle ideas that may help
None of these is guaranteed to remove soreness, and the evidence for most is modest. They are things many people find comfortable.
- Light movement. Easy walking, cycling or swimming often feels better than sitting still. This is the idea behind active recovery.
- Gentle stretching. It may feel pleasant, though research suggests it does not reliably reduce soreness. Keep it mild.
- Foam rolling or self-massage. Some people find it soothing. It is worth treating it as a comfort measure, using light pressure.
- Warmth. A warm bath or shower can ease stiffness and help you relax.
- Sleep. Rest is when the body does much of its recovery, so decent sleep quality is worth protecting.
- Regular meals and fluids. Eating enough and staying hydrated supports recovery generally, and a balanced diet is a better focus than any single food or product.
Over-the-counter pain relievers are a decision to make with a pharmacist or doctor, especially if you take other medicines or have a medical condition. This site does not give dosage advice.
Should you train while sore?
Mild to moderate soreness does not usually mean you must stop completely. Some people do lighter work or train different muscle groups. Others take a rest day. A reasonable guide is to see whether the soreness eases as you warm up and whether you can move with normal form. If it stays painful or changes how you move, skipping the session is sensible. Heavy or intense work on very sore muscles is generally best postponed.
A proper warm-up routine makes sore muscles more comfortable to move, and a slow cool-down routine afterward may feel good, even if neither is proven to prevent soreness.
Reducing how sore you get
- Increase volume, weight or distance gradually rather than in big jumps.
- Introduce new movements with a lighter effort first. Strength training basics lean on this same idea.
- Leave enough time between hard sessions for the same muscles.
- Pay attention to effort, using perceived exertion as a rough check instead of always training to exhaustion.
When soreness might be something else
Ordinary soreness feels diffuse, improves over a few days and affects both sides of the body similarly. See a doctor or other qualified professional promptly if you notice:
- sharp, sudden or localized pain during activity
- swelling, bruising or a visible deformity
- pain in a joint rather than a muscle
- soreness that is getting worse after several days or lasts longer than a week or so
- weakness or numbness, or a limb that will not move normally
- very dark, tea-colored urine, severe swelling or intense pain with weakness after very hard exercise, which needs urgent medical attention
- pain in one calf with swelling or warmth, or chest pain, breathlessness or dizziness during exercise, which also need urgent care
If you have a health condition or are unsure what you are feeling, a medical check-up or a visit with a physical therapist can sort out what is going on. Mild, short-lived soreness is common and normal, but pain that worries you deserves attention.